Method of protecting commercial paper



June 23, 1925.

L MINKIN ET AL METHOD OF PROTECTING COMMERCIAL PAPER original Filed sept. 5. 1924 Patented June 23, 1925.

ISRAEL MINKIN ANI) LO'UIS MAGIDSQN, 0F DORCHESTER, MASSACHUSETTS.

METHOD oF PROTECTING coMMERcrAr.. PAPER.

Original application led September 5,

1924, Serial No. 736,123. Divided and this application led March 9, 1925.- Serial No. 14,088.

T o all whom it may concern.' l

Be it known that we, ISRAEL MINKIN and LOUIS MAGIDSON, citizens of the United States, and residents of Dorchester, in the county of setts, have invented an Improvement in Methods of Protecting Commercial Paper, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings` representing like parts.

Our present invention 'is a novel and improved method or process of protecting checks, drafts, acceptances, or other commercial paper, and is a divisional lof our prior and copending application Serial No. 736,123, filed September 5th, 1924.

An important feature of our present invention consists in so protecting -acheck or other commercial paper, that it will be impossible to alter the same subsequently, because of the fact that the characters are not merely impressed or indented in the paper to be protected, but said paper, having been entirely penetrated, or cut through, cannot be restored to its original condition. invention is a methodwhereby a check, for example, will be' cut'or perforated, and inked or colored, simultaneously. v

In order to carry out our invention of protecting checks, or the like, by cutting, or cutting. and coloring, simultaneously, we provide a platen, forming an oblique knurling, as shown in the drawing, although it will be understood and appreciated that this knurling may assume any form, so long as it carries out our invention. ters comprising the stamp or die'to be perforated through the check to be protected, are also knurled to cooperate with the knurling in the platen. IVe also provide a coloring means, preferably aribbon, asherein Shown, interposed between the platen and the stamp or die. Then it is desired to operate upon or to protect a check, for instance, by certification, as herein shown, the check is positioned between the platen and the stamp or die, whereupon the platen and stamp are` brought into Contact by any suitable means, and thereupon, the knurling on .the platen and stamp will cooperate, completely cutting through the paper the words and figures, and simultaneously forcing through the perforations, thus formed, the

Suffolk and State of Massachu- Our The characcoloring matter from the ribbon. So far as we are informed and aware, it has never been possible or feasible to perforate an entire stamp or design comprising a plurality of lines of characters, through a check or other paper, simultaneously. Therefore, we wish to claim this feature broadly.

We also believe that our novel method of thus cutting an entire stamp or .design through paper, and coloring the same simultaneously with said cutting is new, and we also wish to claim this feature herein broadly.

-Further features of the invention, novel combinations of parts, and advantages, will be herein more fully pointed out and claimed.

Referring to the drawings, illustrating o ur invention in conventionalform,

'Figf 1 is a plan view of a plate,`having thereon a complete certification stamp to be perforated through a paper to be protected;

Fig. 2 is a plan view of a knurled platen to cooperate with the plate shown in Fig. 1;and

, Fig. 3 is an enlarged fragmentary detail -with the platen and stamp in cooperating position, anda ribbon and cheek interposed therebetween. n

It will be appreciated that we have illustrated in the attached drawing but one form of platen and stamp for carrying out our invention, and .that the platen and Stamp,

instead of being fiat as herein illustrated, may be of .a concavo-convex form, or any other form so long as the platen and stamp are parallel to each other, and can carry out the feature of cutting the entire design through a Sheet of paper, simultaneously. For purposes of illustration only, therefore,

we have shown the form in the attached drawing wherein .is illustrated a plate 1, having thereon a plurality of letters, figures, or other characters 2, these characters being knurled. It will also be appreciated that this plate 1 may 4have thereon any design, or any characters, for any purpose of `protection. In the-form lshown in Fig. 1 we have illustrated a certification stam o, with the usual certification charactersl t ereon. In the plate 1 is illustrated a longitudinal opening 3, wherein a date 4 may be inserted, such date to be changed at will.

Fig. 2 illustrates a platen 5, knurlcd to on the platen 5,-although thisposition of ribbon may be reversed, if desired. Upon operation of any suitable mechanism to bring the platen and stamp into contact, the knurling 8 on the characters 2, will penetrate the check or other paper 6, and

enter the valley 9 in the platen 5, thus out# ting, penetrating, or lacerating entirely through the check 6. The ribbon 7 will not be torn or injured by reason of this penetrating action, because the ribbon being relatively soft, compared with the papel', will give sothat it will conform to the knurlings on the characters and platen, whereas the paperbeing soft will not give, but will be penetrated by the points or edges of said linurling. It will be appreciated that all of the characters on the stamp or design are thus knurled to cooperate with knurling on the platen 5, so that the entire design will be perforated through the check, simultaneously. If desired, we may utilize our present invention without a ribbon or other coloring means, relying upon the perforating action of the stamp to protect the check, but it will be appreciated that by the use of the ribbon, in conjunction with the cutting members, a protecting design is pro-- duced upon a check, or the like, which will be ineffaceable, because the cutting action has so weakened the cut portions, that any attempt to eradicate the same, results in the destruction of the desigmand the instant detection of the attempted alteration.

The carrying out of our novel method will be instantly apparent. It being desired to protect, for example, a check, the check is positioned between the knurlcd platen and {nurled stamp, either with or without the "'ribbonjnterposed therebetween, the' platen and stamp are brought into contact with each other, whereupon an unalterable and inetfaceable design is cut or perforated through the paper, and 4preferably simultaneously colored. j

-In our copending application, Serial No. 736,123, we have illustrated one apparatus for carrying out our novel method, but ity commercial paper, which consists in perforating therethrough a design comprising a plurality of lines of characters, and simultaneously coloring the same by means of a ribbon.

3. The improved method of protecting commercial paper, which consists iny positioning said paper between a platen and a stamp, providin a coloring ribbon between said platen an stamp, and bringing the platen and stamp into contact, whereby an impression is out completely through the paper, and'simult'aneously colored.

4. The improved method of protecting commercial paper, which consists in positioning said paper between a platen and stamp, said stamp comprising a plurality of lines of characters, said platen and stamp having cooperating knurlings thereon; providing a coloring ribbon between said platen and stamp, and bringing the platen and st-amp into contact, whereby an impression is cut completely through the paper, and the portions surrounding said perforations are simultaneously colored.

In testimony whereof, we have signed our names to this specification.

ISRAEL MINKIN. Louis MAGIDsoN. 

